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Doğan A, Okumuş EB, Turhan SŞ. Conditioned medium of induced pluripotent stem cell derived neuromesodermal progenitors enhances cell migration in vitro. Mol Biol Rep 2024; 51:441. [PMID: 38520606 DOI: 10.1007/s11033-024-09375-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/23/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Identification of novel cell-based therapy sources has been of great interest in recent years to provide alternative and available therapy options in clinics. Conditioned medium (CM) can be a valuable supply for growth factors, cytokines and chemokines as a source of stem cell secretome. Exploring the role of new CM sources for tissue regeneration might be a promising approach for therapeutic purposes. METHODS AND RESULTS In the current study, neuromesodermal progenitors (NMPs) derived from induced pluripotent stem cells (iPSCs) were used to collect CM. Fibroblast derived iPSCs were successfully differentiated into NMPs and NMPs were characterized by double positive T/Bra and Sox2 staining. CM was collected from NMPs, and the content was characterized by membrane analysis. In vitro wound healing assay was used as a model system to observe potential activity of CM on cell migration. Fibroblasts, keratinocytes and endothelial cells were used to evaluate the effect of NMP-derived CM (NMP-CM) on cell migration in vitro. Several important proteins related to wound healing such as ANGPT 1, ANGPT 2, MCP-1, PDGF-AA, SDF-1α, TIMP-1 and TIMP-2 were increased in NMP-CM. NMP-CM increased cell proliferation and migration in vitro. CONCLUSIONS In vitro data obtained from three distinct cell types suggest a promising role of NMP-CM on cell migration. NMP-CM can be used for wound management in the further future after detailed in vitro and in vivo research.
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Affiliation(s)
- Ayşegül Doğan
- Faculty of Engineering, Genetics and Bioengineering Department, Yeditepe University, İstanbul, Turkey.
| | - Ezgi Bulut Okumuş
- Faculty of Engineering, Genetics and Bioengineering Department, Yeditepe University, İstanbul, Turkey
| | - Selinay Şenkal Turhan
- Faculty of Engineering, Genetics and Bioengineering Department, Yeditepe University, İstanbul, Turkey
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Ram A, Duncan WJ, Coates DE, Nobakht S, Tkatchenko T, Milne TJ. Bone remodelling marker expression in grafted and ungrafted sheep tooth extraction sockets: A comparative randomised study. Arch Oral Biol 2023; 153:105738. [PMID: 37295140 DOI: 10.1016/j.archoralbio.2023.105738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To compare key markers of bone remodelling in a sheep tooth extraction model for sockets left to heal naturally or grafted with the bovine-derived xenograft Bio-Oss® covered with a collagen Bio-Gide® membrane. DESIGN Right side premolar teeth were removed from thirty Romney-cross ewes. Standardised sockets in each sheep were randomly allocated treatments, a grafted test and an empty control. At 4-, 8- and 16-weeks sheep were euthanized and tissue collected (N = 10/group). RANK, RANKL and OPG immunohistochemical analysis was performed (n = 3). RANK, RANKL, OPG, COL1A1, TIMP3, SP7 and MSX2 mRNA expression levels were determined using RT2-qPCR assays (n = 3). RESULTS Histologically, more new woven bone was observed in the test group at all time points. Strong RANK and RANKL expression was found in both groups; at all time points with stronger RANK staining in the test group at 8 and 16 weeks. Strong OPG staining was localized to both osteoblasts and connective tissues. RANK receptor mRNA was expressed at a lower level in the test group (-4.26-fold; p = 0.02) at 4 weeks and SP7 at 16 weeks (-2.89-fold; p = 0.04). COL1A1 and TIMP3 mRNA expression increased significantly over time in the control group (p = 0.045, F = 5.4 and p = 0.003, F = 42.2 respectively). CONCLUSION Socket healing over time was comparable. The sheep tooth extraction model was found to be suitable for the evaluation of changes in the alveolar bone at the molecular level.
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Affiliation(s)
- Anumala Ram
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Warwick J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Dawn E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Saeideh Nobakht
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Tatiana Tkatchenko
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Trudy J Milne
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
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Nobakht S, Milne TJ, Duncan WJ, Ram A, Tkatchenko T, Dong Z, Coates DE. Expression of the pleiotrophin-midkine axis in a sheep tooth socket model of bone healing. J Periodontal Res 2023; 58:109-121. [PMID: 36411509 PMCID: PMC10099163 DOI: 10.1111/jre.13073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/24/2022] [Accepted: 11/05/2022] [Indexed: 11/23/2022]
Abstract
OBJECTIVE AND BACKGROUND Resorption of alveolar bone after tooth extraction is a common problem often requiring bone grafting. The success of the grafting procedures is dependent on multiple factors including the presence of growth factors. This is the first in vivo study to investigate the role of the pleiotrophin family of cytokines in alveolar bone regeneration. This research investigated the role of the pleiotrophin-midkine (PTN-MDK) axis during osteogenesis, with and without a grafting material, after tooth extraction in a sheep model. METHODS Thirty Romney-cross ewes were anesthetized, and all premolar teeth on the right side were extracted. The sockets were randomized to controls sites with no treatment and test sites with Bio-Oss® graft material and Bio-Gide® membrane. Samples were harvested after sacrificing animals 4, 8, and 16 weeks post-grafting (n = 10 per time-point). Tissue for qRT2 -PCR gene analysis was recovered from the socket next to the first molar using a trephine (Ø = 2 mm). Each socket was fixed, decalcified, paraffin-embedded, and sectioned. Immunohistochemistry was conducted to localize both PTN and MDK along with their receptors, protein tyrosine phosphatase receptor type Z1 (PTPRZ1), ALK receptor tyrosine kinase (ALK), and notch receptor 2 (NOTCH2). RESULTS Within the healing sockets, high expression of genes for PTN, MDK, NOTCH2, and ALK was found at all time-points and in both grafted and non-grafted sites, while PTPRZ1 was only expressed at low levels. The relative gene expression of the PTN family of cytokines was not statistically different at the three time-points between test and control groups (p > .05). Immunohistochemistry found PTN and MDK in association with new bone, NOTCH2 in the connective tissue, and PTPRZ1 and ALK in association with cuboidal osteoblasts involved in bone formation. CONCLUSIONS The PTN-MDK axis was highly expressed in both non-grafted and grafted sockets during osteogenesis in a sheep model of alveolar bone regeneration with no evidence that grafting significantly affected expression. The activation of NOTCH2 and PTPRZ1 receptors may be important during bone regeneration in vivo. The discovery of the PTN-MDK axis as important during alveolar bone regeneration is novel and opens up new avenues of research into these stably expressed highly active cytokines. Growth factor supplementation with PTN and/or MDK during healing may be an approach for enhanced regeneration or to initiate healing where delayed.
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Affiliation(s)
- Saeideh Nobakht
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Trudy J Milne
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Warwick J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Anumala Ram
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Tatiana Tkatchenko
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Zhen Dong
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Dawn E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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Speacht TL, Lang CH, Donahue HJ. Soluble RANKL exaggerates hindlimb suspension-induced osteopenia but not muscle protein balance. J Orthop Res 2021; 39:1860-1869. [PMID: 33222219 PMCID: PMC8140066 DOI: 10.1002/jor.24917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/02/2020] [Accepted: 11/19/2020] [Indexed: 02/04/2023]
Abstract
We examined the hypothesis that exaggerating unloading-induced bone loss using a combination of hindlimb suspension (HLS) and exogenous injections of receptor activator of nuclear factor-κB ligand (RANKL) also exaggerates gastrocnemius and quadriceps muscle loss. Forty, male C57Bl/6J mice (16 weeks) were subjected to HLS or normal ambulation (ground control, GC) for 14 days. Mice received three intraperitoneal injections of either human recombinant soluble RANKL or phosphate-buffered saline as control (n = 10/group) at 24 h intervals starting on Day 1 of HLS. GC + RANKL and HLS mice exhibited similar decreases in trabecular bone volume and density in both proximal tibias and distal femurs. However, RANKL affected trabecular number, separation, and connectivity density, while HLS decreased trabecular thickness. The combination of RANKL and HLS exacerbated these changes. Similarly, GC + RANKL and HLS mice saw comparable decreases in cortical bone volume, thickness, and strength in femur midshafts, and combination treatment exacerbated these changes. Plasma concentrations of P1NP were increased in both groups receiving RANKL, while CTX concentrations were unchanged. HLS decreased gastrocnemius weight and was associated with a reduction in global protein synthesis, and no change in proteasome activity. This change was correlated with a decrease in S6K1 and S6 phosphorylation, but no change in 4E-BP1 phosphorylation. Injection of RANKL did not alter gastrocnemius or quadriceps muscle protein metabolism in GC or HLS mice. Our results suggest that injection of soluble RANKL exacerbates unloading-induced bone loss, but not unloading-induced gastrocnemius or quadriceps muscle loss.
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Affiliation(s)
- Toni L. Speacht
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Charles H. Lang
- Department of Cellular and Molecular Physiology, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Henry J. Donahue
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA,Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
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Etemad-Moghadam S, Hajihoseini N, Rezvani G. Comparison of routine and microwave-assisted decalcification of bone with or without teeth: A histologic study. Dent Res J (Isfahan) 2020. [DOI: 10.4103/1735-3327.302887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Histologic evidence of periodontal regeneration in furcation defects: a systematic review. Clin Oral Investig 2019; 23:2861-2906. [PMID: 31165313 DOI: 10.1007/s00784-019-02964-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 05/16/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To systematically review the available histologic evidence on periodontal regeneration in class II and III furcations in animals and humans. MATERIALS AND METHODS A protocol including all aspects of a systematic review methodology was developed including definition of the focused question, defined search strategy, study inclusion criteria, determination of outcome measures, screening methods, data extraction and analysis, and data synthesis. The focused question was defined as follows: "What is the regenerative effect obtained by using or not several biomaterials as adjuncts to open flap surgery in the treatment of periodontal furcation defects as evaluated in animal and human histological studies?" SEARCH STRATEGY Using the MEDLINE database, the literature was searched for articles published up to and including September 2018: combinations of several search terms were applied to identify appropriate studies. Reference lists of review articles and of the included articles in the present review were screened. A hand search of the most important dental journals was also performed. CRITERIA FOR STUDY SELECTION AND INCLUSION Only articles published in English describing animal and human histological studies evaluating the effect of surgical treatment, with or without the adjunctive use of potentially regenerative materials (i.e., barrier membranes, grafting materials, growth factors/proteins, and combinations thereof) for the treatment of periodontal furcation defects were considered. Only studies reporting a minimum of 8 weeks healing following reconstructive surgery were included. The primary outcome variable was formation of periodontal supporting tissues [e.g., periodontal ligament, root cementum, and alveolar bone, given as linear measurements (in mm) or as a percentage of the instrumented root length (%)] following surgical treatment with or without regenerative materials, as determined histologically/histomorphometrically. Healing type and defect resolution (i.e., complete regeneration, long junctional epithelium, connective tissue attachment, connective tissue adhesion, or osseous repair) were also recorded. RESULTS In animals, periodontal regeneration was reported in class II and III defects with open flap debridement alone or combined with various types of bone grafts/bone substitues, biological factors, guided tissue regeneration, and different combinations thereof. The use of biological factors and combination approaches provided the best outcomes for class II defects whereas in class III defects, the combination approaches seem to offer the highest regenerative outcomes. In human class II furcations, the best outcomes were obtained with DFDBA combined with rhPDGF-BB and with GTR. In class III furcations, evidence from two case reports indicated very limited to no periodontal regeneration. CONCLUSIONS Within their limits, the present results suggest that (a) in animals, complete periodontal regeneration has been demonstrated in class II and class III furcation defects, and (b) in humans, the evidence for substantial periodontal regeneration is limited to class II furcations. CLINICAL RELEVANCE At present, regenerative periodontal surgery represents a valuable treatment option only for human class II furcation defects but not for class III furcations.
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Hosseinpour S, Fekrazad R, Arany PR, Ye Q. Molecular impacts of photobiomodulation on bone regeneration: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2019; 149:147-159. [PMID: 31002851 DOI: 10.1016/j.pbiomolbio.2019.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Photobiomodulation (PBM) encompasses a light application aimed to increase healing process, tissue regeneration, and reducing inflammation and pain. PBM is specifically aimed to modify the expression of cellular molecules; however, PBM impacts on cellular and molecular pathways especially in bone regenerative medicine have been investigated in scattered different studies. The purpose of the current study is to systematically review evidence on molecular impact of PBM on bone regeneration. A comprehensive electronic search in Medline, Scopus, EMBASE, EBSCO, Cochrane library, web of science, and google scholar was conducted from January 1975 to October 2018 limited to English language publications on administrations of photobiomodulation for bone regeneration which evaluated biological factors. In addition, hand search of selected journals was done to retrieve all articles. This systematic review was performed based on PRISMA guideline. Among these studies, five articles reported in vitro results, twelve articles were in vivo, and three of them were clinical trials. The data tabulated according to the type of markers (osteogenic markers, angiogenic markers, growth factors, and inflammation mediators). PBM's effects depend on many parameters which energy density is more important than the others. PBM can significantly enhance expression of osteocalcin, collagen, RUNX-2, vascular endothelial growth factor, bone morphogenic proteins, and COX-2. Although since the heterogeneity of the studies and their limitations, an evidence-based decision for definite therapeutic application of PBM is still unattainable, the findings of our review can help other researchers to ameliorate their study design and elect more efficient approach for their investigation.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia; Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran.
| | - Reza Fekrazad
- Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran; International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Praveen R Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, NY, 14214, USA.
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.
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Liao F, Liu SB, Liu Y, Liu HH, Hu J, Liu X. [Human osteoprotegerin inhibits osteoclasts and promotes hydroxyapatite to repair the mandibular defects in ovariectomized rats]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2018; 36:367-371. [PMID: 30182562 PMCID: PMC7048247 DOI: 10.7518/hxkq.2018.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 03/09/2018] [Indexed: 02/05/2023]
Abstract
OBJECTIVE This study aims to investigate the effect of human osteoprotegerin (hOPG) gene-modified rat bone marrow mesenchymal stem cells (rBMSCs) combined with hydroxyapatite (HA) scaffolds on the repair of mandibular defects in ovariectomized rats. METHODS rBMSCs were transfected with adenovirus carrying pDC316-hOPG-EGFP. The expression of hOPG and the inhibition of osteoclast function were detected by Western blot and bone-grinding experiment respectively. The model of mandibular bone defect in rats with osteoporosis was established; HA, untransfected rBMSCs-conjugated HA, and transfected rBMSCs-conjugated HA scaffolds were implanted into the mandibular bone defects. After six weeks, tartrateresistant acid phosphatase staining and hematoxylin-eosin staining were used to observe the number of osteoclasts and repair of bone defect. RESULTS Adenovirus carrying hOPG gene in vitro were successfully transfected into rBMSCs. The hOPG with anti-osteoclast activity was expressed by hOPG-rBMSCs, and rBMSCs expressing hOPG combined with HA scaffolds promoted mandibular defect repair. CONCLUSIONS rBMSCs transfected with hOPG gene inhibited the function of osteoclasts both in vitro and in vivo, and transfected rBMSCs combined with HA scaffolds promoted the repair of mandibular defects in rats with osteoporosis.
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Affiliation(s)
- Feng Liao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology, Hubei Province & Key Laboratory of Oral Biomedicine Wuhan University, Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Shi-Bo Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yao Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hang-Hang Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jian Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology, Hubei Province & Key Laboratory of Oral Biomedicine Wuhan University, Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Xian Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Fawzy El-Sayed KM, Dörfer CE. Animal Models for Periodontal Tissue Engineering: A Knowledge-Generating Process. Tissue Eng Part C Methods 2017; 23:900-925. [DOI: 10.1089/ten.tec.2017.0130] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Karim M. Fawzy El-Sayed
- Department of Oral Medicine and Periodontology, Faculty of Oral and Dental Medicine, Cairo University, Giza, Egypt
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, Kiel, Germany
| | - Christof E. Dörfer
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, Kiel, Germany
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Varoni EM, Vijayakumar S, Canciani E, Cochis A, De Nardo L, Lodi G, Rimondini L, Cerruti M. Chitosan-Based Trilayer Scaffold for Multitissue Periodontal Regeneration. J Dent Res 2017; 97:303-311. [PMID: 29045803 DOI: 10.1177/0022034517736255] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Periodontal regeneration is still a challenge for periodontists and tissue engineers, as it requires the simultaneous restoration of different tissues-namely, cementum, gingiva, bone, and periodontal ligament (PDL). Here, we synthetized a chitosan (CH)-based trilayer porous scaffold to achieve periodontal regeneration driven by multitissue simultaneous healing. We produced 2 porous compartments for bone and gingiva regeneration by cross-linking with genipin either medium molecular weight (MMW) or low molecular weight (LMW) CH and freeze-drying the resulting scaffolds. We synthetized a third compartment for PDL regeneration by CH electrochemical deposition; this allowed us to produce highly oriented microchannels of about 450-µm diameter intended to drive PDL fiber growth toward the dental root. In vitro characterization showed rapid equilibrium water content for MMW-CH and LMW-CH compartments (equilibrium water content after 5 min >85%). The MMW-CH compartment degraded more slowly and provided significantly more resistance to compression (28% ± 1% of weight loss at 4 wk; compression modulus HA = 18 ± 6 kPa) than the LMW-CH compartment (34% ± 1%; 7.7 ± 0.8 kPa) as required to match the physiologic healing rates of bone and gingiva and their mechanical properties. More than 90% of all human primary periodontal cell populations tested on the corresponding compartment survived during cytocompatibility tests, showing active cell metabolism in the alkaline phosphatase and collagen deposition assays. In vivo tests showed high biocompatibility in wild-type mice, tissue ingrowth, and vascularization within the scaffold. Using the periodontal ectopic model in nude mice, we preseeded scaffold compartments with human gingival fibroblasts, osteoblasts, and PDL fibroblasts and found a dense mineralized matrix within the MMW-CH region, with weakly mineralized deposits at the dentin interface. Together, these results support this resorbable trilayer scaffold as a promising candidate for periodontal regeneration.
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Affiliation(s)
- E M Varoni
- 1 Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy.,2 Department of Materials Engineering, McGill University, Montreal, Canada
| | - S Vijayakumar
- 2 Department of Materials Engineering, McGill University, Montreal, Canada
| | - E Canciani
- 1 Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
| | - A Cochis
- 1 Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy.,3 Dipartimento di Scienze della Salute, Università del Piemonte Orientale, Novara, Italy
| | - L De Nardo
- 4 Department of Chemistry, Materials, and Chemical Engineering "G. Natta," Politecnico di Milano, Milano, Italy.,5 INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali, Firenze, Italy
| | - G Lodi
- 1 Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
| | - L Rimondini
- 3 Dipartimento di Scienze della Salute, Università del Piemonte Orientale, Novara, Italy
| | - M Cerruti
- 2 Department of Materials Engineering, McGill University, Montreal, Canada
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Smith MM, Duncan WJ, Coates DE. Attributes of Bio-Oss ® and Moa-Bone ® graft materials in a pilot study using the sheep maxillary sinus model. J Periodontal Res 2017; 53:80-90. [PMID: 28868669 DOI: 10.1111/jre.12490] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND OBJECTIVE The aim of this pilot study was to characterize surface morphology and to evaluate resorption and osseous healing of two deproteinated bovine bone graft materials after sinus grafting in a large animal model. MATERIAL AND METHODS Surfaces of a novel particulate bovine bone graft, Moa-Bone® were compared with Bio-Oss® using scanning electron microscopy. Six sheep then had maxillary sinus grafting bilaterally, covered with BioGide® . Grafted maxillae were harvested after 4, 6 and 12 weeks. Healing was described for half of each site using resin-embedded ground sections. For the other half, paraffin-embedded sections were examined using tartrate resistant acid phosphatase staining for osteoclast activity, runt-related transcription factor2 immunohistochemistry for pre-osteoblasts and osteoblasts and proliferating cell nuclear antigen for proliferative cells. RESULTS Moa-Bone® had a smoother, more porous fibrous structure with minimal globular particles compared with Bio-Oss® . After 4 weeks, woven bone formed on both grafts and the Moa-Bone® particles also showed signs of resorption. After 12 weeks, Moa-Bone® continued to be resorbed, however Bio-Oss® did not; both grafts were surrounded by maturing lamellar bone. Moa-Bone® was associated with earlier evidence of runt-related transcription factor 2-positive cells. Moa-Bone® but not Bio-Oss® was associated with strong tartrate resistant acid phosphatase-positive osteoclasts on the graft surface within resorption lacunae at both 4 and 6 weeks post-grafting. CONCLUSION Both materials supported osseous healing and maturation without inflammation. Moa-Bone® showed marked osteoclast activity after 4 and 6 weeks and demonstrated positive attributes for grafting, if complete remodeling of the graft within the site is desired. Further optimization of Moa-Bone® for maxillofacial applications is warranted.
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Affiliation(s)
- M M Smith
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - W J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - D E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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12
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Camassa JA, Diogo CC, Bordelo JPA, Bonelli MDA, Viegas CA, Azevedo JT, Dourado N, Dias IR. Tartrate-resistant acid phosphate as biomarker of bone turnover over the lifespan and different physiologic stages in sheep. BMC Vet Res 2017; 13:239. [PMID: 28810860 PMCID: PMC5558774 DOI: 10.1186/s12917-017-1170-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 08/09/2017] [Indexed: 02/04/2023] Open
Abstract
Background Currently, the best resources for assessment of bone tissue using imaging techniques are expensive and available in few medical facilities, thus serum or urinary bone turnover biomarkers could be useful as early indicators of prognosis. However, there is a wide range of variability in bone turnover markers due to several factors, such as different ages and metabolic stages, thus it is important to have as much data published on the subject as possible. The aim of this study was therefore to generate a reference range for alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) and validate the already published data. Results Serum alkaline phosphatase decreased with age, with statistical difference between the 1 month old and the other groups and between the over 8 years and the 6 months old groups. There was also a statistical difference in the ALP levels between the 3 to 5 years old gestation and lactation groups. For serum tartrate-resistant acid phosphatase, there was a statistical difference mainly between the 1 month old and the 6 months old, 6–8 years old, and above 8 years old groups. Conclusions The results obtained could represent a useful tool for future studies using sheep as an animal model for orthopedic research. The different groups presented a wide variation of serum ALP and TRAP levels, however, these variations are entirely explained by known physiology. Therefore, this detailed study confirms the prediction that unexplained changes in these bone turnover markers do not occur during the lifespan of sheep.
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Affiliation(s)
- José A Camassa
- Department of Veterinary Sciences, Agricultural and Veterinary Sciences School (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, P.O. Box 1013, 5001-801, Vila Real, Portugal
| | - Camila C Diogo
- Department of Veterinary Sciences, Agricultural and Veterinary Sciences School (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, P.O. Box 1013, 5001-801, Vila Real, Portugal
| | - João P A Bordelo
- Department of Veterinary Sciences, Agricultural and Veterinary Sciences School (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, P.O. Box 1013, 5001-801, Vila Real, Portugal
| | - Marília de A Bonelli
- Federal Rural University of Pernambuco (UFRPE), R. Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | - Carlos A Viegas
- Department of Veterinary Sciences, Agricultural and Veterinary Sciences School (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, P.O. Box 1013, 5001-801, Vila Real, Portugal.,CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, UTAD, Vila Real, Portugal
| | - Jorge T Azevedo
- Department of Animal Sciences, ECAV, UTAD, Vila Real, Portugal.,CECAV - Centre for Animal Sciences and Veterinary Studies, UTAD, Vila Real, Portugal
| | - Nuno Dourado
- CMEMS-UMinho, Department of Mechanical Engineering, University of Minho, Campus de Azurém, 4804-533, Guimarães, Portugal
| | - Isabel R Dias
- Department of Veterinary Sciences, Agricultural and Veterinary Sciences School (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, P.O. Box 1013, 5001-801, Vila Real, Portugal. .,CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, UTAD, Vila Real, Portugal.
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Camassa JA, Diogo CC, Sousa CP, Azevedo JT, Viegas CA, Reis RL, Dourado N, Dias IR. Bone turnover markers in sheep and goat: A review of the scientific literature. AN ACAD BRAS CIENC 2017; 89:231-245. [PMID: 28273244 DOI: 10.1590/0001-3765201720160407] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 10/11/2016] [Indexed: 01/23/2023] Open
Abstract
Bone turnover markers (BTMs) are product of bone cell activity and are generally divided in bone formation and bone resorption markers. The purpose of this review was to structure the available information on the use of BTMs in studies on small ruminants, especially for monitoring their variations related to diet, exercise, gestation and metabolic lactation state, circadian and seasonal variations, and also during skeletal growth. Pre-clinical and translational studies using BTMs with sheep and goats as animal models in orthopaedic research studies to help in the evaluation of the fracture healing process and osteoporosis research are also described in this review. The available information from the reviewed studies was systematically organized in order to highlight the most promising BTMs in small ruminant research, as well as provide a wide view of the use of sheep and goat as animal models in orthopaedic research, type of markers and commercial assay kits with cross-reactivity in sheep and goat, method of sample and storage of serum and urine for bone turnover markers determination and the usefulness and limitations of bone turnover markers in the different studies, therefore an effective tool for researchers that seek answers to different questions while using BTMs in small ruminants.
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Affiliation(s)
- José A Camassa
- 1Department of Veterinary Sciences, Agricultural and Veterinary Sciences School/ ECAV, University of Trás-os-Montes and Alto Douro/ UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Camila C Diogo
- 1Department of Veterinary Sciences, Agricultural and Veterinary Sciences School/ ECAV, University of Trás-os-Montes and Alto Douro/ UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Cristina P Sousa
- Center Hospitalar of Porto, Largo Prof. Abel Salazar, 4099-001 Porto, Portugal
| | - Jorge T Azevedo
- Department of Animal Sciences/ ECAV, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal.,Centre for Animal Sciences and Veterinary Studies/ CECAV, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Carlos A Viegas
- 1Department of Veterinary Sciences, Agricultural and Veterinary Sciences School/ ECAV, University of Trás-os-Montes and Alto Douro/ UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences/ CITAB, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,Life and Health Sciences Research Institute/ ICVS, School of Health Sciences, University of Minho Campus de Gualtar 4710-057 Braga, Portugal
| | - Nuno Dourado
- Department of Mechanical Engineering, University of Minho, Azurém Campus, 4804-533 Guimarães, Portugal
| | - Isabel R Dias
- 1Department of Veterinary Sciences, Agricultural and Veterinary Sciences School/ ECAV, University of Trás-os-Montes and Alto Douro/ UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences/ CITAB, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
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14
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Jayash SN, Hashim NM, Misran M, Baharuddin NA. In vitro evaluation of osteoprotegerin in chitosan for potential bone defect applications. PeerJ 2016; 4:e2229. [PMID: 27635307 PMCID: PMC5012333 DOI: 10.7717/peerj.2229] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/16/2016] [Indexed: 01/07/2023] Open
Abstract
Background The receptor activator of nuclear factor kappa-B (RANK)/RANK ligand/osteoprotegerin (OPG) system plays a critical role in bone remodelling by regulating osteoclast formation and activity. OPG has been used systemically in the treatment of bone diseases. In searching for more effective and safer treatment for bone diseases, we investigated newly formulated OPG-chitosan complexes, which is prepared as a local application for its osteogenic potential to remediate bone defects. Methods We examined high, medium and low molecular weights of chitosan combined with OPG. The cytotoxicity of OPG in chitosan and its proliferation in vitro was evaluated using normal, human periodontal ligament (NHPL) fibroblasts in 2D and 3D cell culture. The cytotoxicity of these combinations was compared by measuring cell survival with a tetrazolium salt reduction (MTT) assay and AlamarBlue assay. The cellular morphological changes were observed under an inverted microscope. A propidium iodide and acridine orange double-staining assay was used to evaluate the morphology and quantify the viable and nonviable cells. The expression level of osteopontin and osteocalcin protein in treated normal human osteoblast cells was evaluated by using Western blot. Results The results demonstrated that OPG in combination with chitosan was non-toxic, and OPG combined with low molecular weight chitosan has the most significant effect on NHPL fibroblasts and stimulates proliferation of cells over the period of treatment.
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Affiliation(s)
- Soher Nagi Jayash
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Najihah M Hashim
- Department of Pharmacy, Faculty of Medicine, University of Malaya,Kuala Lumpur,Malaysia; Centre For Natural Products And Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya,Kuala Lumpur,Malaysia
| | - Misni Misran
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - N A Baharuddin
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
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15
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Dufresne SS, Boulanger-Piette A, Bossé S, Frenette J. Physiological role of receptor activator nuclear factor-kB (RANK) in denervation-induced muscle atrophy and dysfunction. ACTA ACUST UNITED AC 2016; 3:e13231-e13236. [PMID: 27547781 PMCID: PMC4991940 DOI: 10.14800/rci.1323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The bone remodeling and homeostasis are mainly controlled by the receptor-activator of nuclear factor kB (RANK), its ligand RANKL, and the soluble decoy receptor osteoprotegerin (OPG) pathway. While there is a strong association between osteoporosis and skeletal muscle dysfunction, the functional relevance of a particular biological pathway that synchronously regulates bone and skeletal muscle physiopathology remains elusive. Our recent article published in the American Journal of Physiology (Cell Physiology) showed that RANK is also expressed in fully differentiated C2C12 myotubes and skeletal muscles. We used the Cre-Lox approach to inactivate muscle RANK (RANKmko) and showed that RANK deletion preserves the force of denervated fast-twitch EDL muscles. However, RANK deletion had no positive impact on slow-twitch Sol muscles. In addition, denervating RANKmko EDL muscles induced an increase in the total calcium concentration ([CaT]), which was associated with a surprising decrease in SERCA activity. Interestingly, the levels of STIM-1, which mediates Ca2+ influx following the depletion of SR Ca2+ stores, were markedly higher in denervated RANKmko EDL muscles. We speculated that extracellular Ca2+ influx mediated by STIM-1 may be important for the increase in [CaT] and the gain of force in denervated RANKmko EDL muscles. Overall, these findings showed for the first time that the RANKL/RANK interaction plays a role in denervation-induced muscle atrophy and dysfunction.
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Affiliation(s)
- Sébastien S Dufresne
- Centre Hospitalier Universitaire de Québec-Centre de Recherche du Centre Hospitalier de l'Université Laval (CHUQ-CRCHUL), Université Laval, Quebec City, Quebec, G1V 4G2, Canada
| | - Antoine Boulanger-Piette
- Centre Hospitalier Universitaire de Québec-Centre de Recherche du Centre Hospitalier de l'Université Laval (CHUQ-CRCHUL), Université Laval, Quebec City, Quebec, G1V 4G2, Canada
| | - Sabrina Bossé
- Centre Hospitalier Universitaire de Québec-Centre de Recherche du Centre Hospitalier de l'Université Laval (CHUQ-CRCHUL), Université Laval, Quebec City, Quebec, G1V 4G2, Canada
| | - Jérôme Frenette
- Centre Hospitalier Universitaire de Québec-Centre de Recherche du Centre Hospitalier de l'Université Laval (CHUQ-CRCHUL), Université Laval, Quebec City, Quebec, G1V 4G2, Canada; Département de Réadaptation, Faculté de Médecine, Université Laval, Quebec City, Quebec, G1V 4G2, Canada
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16
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Liu J, Schmidlin PR, Philipp A, Hild N, Tawse-Smith A, Duncan W. Novel bone substitute material in alveolar bone healing following tooth extraction: an experimental study in sheep. Clin Oral Implants Res 2015; 27:762-70. [DOI: 10.1111/clr.12673] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Jinyi Liu
- Private Periodontal Practice; Auckland New Zealand
| | - Patrick R. Schmidlin
- Clinic of Preventive Dentistry, Periodontology and Cariology; University of Zürich; Zürich Switzerland
| | - Alexander Philipp
- Clinic of Preventive Dentistry, Periodontology and Cariology; University of Zürich; Zürich Switzerland
| | - Nora Hild
- Institute for Chemical and Bioengineering; ETH Zurich; Zurich Switzerland
| | | | - Warwick Duncan
- Department of Oral Sciences; University of Otago; Dunedin New Zealand
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